Recuperator for furnaces



Aug; 19, i924.

1,505,249 A. FELTON ET AL RECUPERATOR FOR FURNACES Filed Feb. 8, 1922 5Sheets-$heet J Aug. 19, 1924. g

A. FELTON ET AL RECUPERATOR FOR FURNACES Filed Feb. 8, 1922 5'Sheets-Sheet 2 Aug.

' A. FELTON ET AL RECUPERATOR FOR FURNACES 5 Sheets-Sheet 5 Filed Feb.8, 1922 A. FELTON ET AL. I V RECUPERATOR FOR FURNACES Filed Feb. 8, 19225 Sheets-Sheet 4 Aug. 19, 1924. 1,505,249

A. FE1 TC)PJ ET /\L RECUPERATOR FOR FURNACES Filed Feb. 8. 1922 5Sheets-Sheet 5 jwvwmlonv J ZZZWZ wmf zmrdmwm Patented Aug. 19, 1.9242,

ADAM rnnron Ann EDWARD n, KLnMno'rH,

or refiners, 1 IND ANA. i

RECUPERATOR FOR FURNACES. i

Applicationfiledliebruary' 8, 1922. Serial No. 534,978;

To all whom it may concern.

Be it known that we ADAM *Fnnroir and EDWARD H. Knruunorri, citizensofthe United States, residing at Muncie, in the county of Delaware andState of Indiana, have invented certain new and useful improvements inRecuperators for Furnaces, of which the following is a specification,reference being had to the accompanying drawings; I

This invention relates to"recuperators"or regenerators used inconnection with furnaces for the purpose of abstracting the heat from anescaping volume of combustionproducts and imparting this heat to anincoming volume of air and gas, the invention relating particularly tothe const-ruction and arrangement of the gas passage, the fresh airducts and the waste heat ducts. I

One of the objects of this invention isito provide a regeneratororrecuperator wherein no checkers are used and wherein thereis nonecessity of reversing'the gas orair, but in which the waste productsflow contin'us ously through th proper fines or passage ways thereforand in one direction and there is a continijious flowof gas andairintheopposite direction through the propenducts therefor.

A further object is to so utilize-the otherwise wasted heat of thecombustionproducts as to impart sufficient heat to the or oil to produceproper combustion, and further to provide a sutlicient amount of freshair to secure perfect combustion. I

A. still further object is to cause the heated gas or oil and air toacquire its greatest heat at the point of leaving the recuperator and entering the furnace, this extreme heat being secured from the waste heatat the instant that the waste heat or products of combustion leave thepot or furnace or other melting device, the outgoing'combustion productsleaving the pot or melting device coming directly in contact with theair fine at the point of combustion.

Still a further object is to cause the waste the fresh air and gas flowtowardthe point I to reduce friction turns and thus -heatecl fresh air.1

es or combustion productsto pass down where the waste gases orcombustion products arethe-hottest, v 1

Another object is to provideiacentral gas passage or, ductanda;plurality of helical fresh air passages winding aroundthe gas duc-t.-thefresh air: passages having inlet ports at their lower ends anddischarging at their upper ends vinto the ,rcombustion chamber, thecentral gas passage also discharging at itsgupper end; into thecornbustion chambers p I A further object in this-connection is toprovide a plurality iof fresh gair ducts arranged in a plurality ofsets; all of the fresh air: ducts extending. in a helixaround thecentral gas passage and one set of fresh r ducts being separated fromthe other set of fresh'ai'r duct-shy heating ducts through which thewaste products .of combustion from; the furnace. pass, these heatingducts being so designedas to carry the waste gases or products ofcombustion downward past the airv ducts and beneath the entrance ductsthereto, then upward to a point immediately beneath the combustionchamber, and then again downward and (out through the stack I so as toutilize every particle of waste heat in heating the incoming airandgaaStill another object-is toproyide inclined fresh air tiledpassa qesleading to and discharging into the helical.-,airxpassagesso as as muchas'possible, the fresh'air beingheated by the waste heat intheseinclinedpassages and naturally flows upward; Thus no draft isneeded to draw the waste gases'into ,thereouperator.

I A further ohjectgis toisoconstruct the air passages astoelimmatevabrupt or angular insure a: steady flow of the A. still furtherobject to form the fresh air d'uctsror passages, of tile having a medialpartition traversing the tile eliminating the cold air center in the aircurrent, and further-making forstability of this partition construction.I

Another object is toprovide very simple means whereby the inlet of freshair to the fresh air passages may becontrolled, which comprises. anintake door :for. each of the fresh air passages, each door being hingedindependently so that it can be adjusted to admit just the proper amountof fresh air to each helix, which will take up the heat from the wastegases, this door further controlling the propertiqn of fresh air tounburned gas, I

Other objects will appear in the course of the followingdescription IOur invention is illustrated in the accompanying drawings, whereinFigure 1 is a vertical section on the line 1-1 of Figure 2;

Figure 2 is a 2 2 er Figure i; g

Figure 3 is a, vertical seetion en the line 3" 3 ef Figure 2; p v

Figure 4 is a traiisi rse station en the line 44 er Figure 1;

plan section on the line Figure 5 is a seetioii on the line 5 5afvFigur-e 1; c H i Figure "6 is a section an the line 6- 6 of Figure1;; I c Figure '7 is a rreatelevanon rone at the door casings for a unitof three air inlet tiles" Figure '8 is side levation of the eonstructionShawn in Figure 7 I Figure 9 is a tac t View ()f the door casings f rthe three units or air inlet flue's;

Figure 10 is a diagrammatic perspective View showingthe air entrancetiles 30, the upright tile 38, and a fragmentary view of the three airfines of one series extending helically from the tile 38;

Figure 11 is a top plan view of a set of three air flue tiles, the tilesbeing separated from each other;

Figure 1.2 is a top plan vie-W of one tile of the innermost setof airflue tiles;

Figure 13. is a face view of the tile shown in Figure 12"'; v p v Figure14 is erase view or the three air flue tiles shewhif' F igure 10;

Referring t6 these drawings, it will be seen that this regenerate orrecuperator' comprises enter, circular Shell or casing, designated 10,of any suitable thickness and character but, ef eourse, made ofinsulating brick or like building material. This wall 10 is supportedupon a suitable foundation 11, is elosed by a shallow dome 12, and belowthis dome there is disposed a horizontal wall 13- of paver std-he's orlike material. Extending upward through the axis of the eir'cu-l'ar wall10 is a circular gas passage 14 defined *by a wall 15 which may be madeof hollow tile. This gas passage at its upper and opens into acombustion chamber 16, thefioor 17 of this combustion chamber beingupwardly inclined and preferably being bjf threeineh stone slabs: Thistom-bustienthjamber has :a width equal approximately to; one half of thediameter of the circulars-(111 1Q and where the gas passage 14 opensinte the combustion chamher there is a Wall 18 which is tangential 'wall10, as at 26.

to the wall of the gas passage and extends some distance into thecombustion chamber. This combustion chamber 16, as illustrated in Figure2, tapers or is contracted from its mouth 19 and this month 19 "forms aport leading into the pot or furnace 20, whichpot or furnace is showndiagrammatically and illustrated as a pot or melting device for meltingglass, though it may be of any suitable character. This pot 20 isillustrated as spaced from the wall 10 and the 25 (see Fig. 2), thiswall extending outward from the wall 15 of the gas duct 14 and beingdivided into two walls beyond the Thus the waste heat chamber 23 iscontracted toward the port 24 just as the combustion chamber 16 iscontracted toward the port 19. It will be noted here that the gasesentering the pot from the combustion chamber circulate, around the potand then pass outthrough port 24 into the. waste heat chamber 23 andfrom 'thencethey pass down through the regenerator or recuperator, aswill be later stated.

It will be noted from Figure 1 that the lower end of the gas duct orpassage 14 terminates above the lower end of the circular wall 10 andthat this gas passage then extends radially outward, as at 27, and isconnected to the gas main 28 leading from a producer plant or from anyother suitable source of gas. Below the bottom of the gas passage 14 andextending tangentially with respect to the center of the gas passage isa wall 29 which terminates at its lower end short of the lower end ofthe wall 10, this wall constituting a baflie. allel to this wall 29andin the space below the bottom of the passage 27 and the vertical gaspassage 14 are disposed a plurality of fresh air inlet fines, eachdesignated 30. As illustrated in Figure 1, there are nine of these freshair flue-s arranged in three vertical series, one series being spacedfrom the other by vertical waste heat lines 31 which are constituted bythe space intervening between the fresh air fines and the baflie wall29. Preferably these flues 30 are formed of tile and, as illustrated inFigure 1, are upwardly inclined from their entrance ends to a pointbeyond the central gas flue 14. Each fresh air entrance fine 30 ispreferably formed of a tile which has a medial Extending par-' partition32, and the entrance end/ of each fresh air entrance flue is providedwith a hinged door 33 which is illustrated a's'hinged at its upper endand adapted to swing to a greater or less distance to admit fresh airinto the fresh air flue.

As illustrated, the frame 34 of each door is provided upon one'side witha s'eriesof ratchet teeth 35 and each door has pivoted to it upon thelaterally projecting pintle 36 a pawl 37 which is adapted to engage thecorresponding ratchet teeth'35 so as to" hold the door open to a degreedeemed necessary by the operator, Thus the admission of fresh air toeach entrance flue 30 is controlled. Preferably. a singledoor frame willbe common to each vertical series of fines.

The three fresh air entrance fines or ducts 30 arranged in the samevertical series open into a vertical duct 38 of tile, the tile formingthis duct 38 being set vertic'ally,with the front wall of the tileremoved, Thus each unit of three fresh air inlet tiles '30 dis-- chargesinto one vertical flue, which in turn discharges the fresh air into aunit consisting of three vertically disposed, helical flues 39. Asillustrated, there are nine or these entrance fresh air fiuesf30arranged in units of three and there are'nine helical flues 39,theseflues being arranged injunits of three vertical fines placedcontiguous to each other and there being three sets of these verticalflues, these sets or series of vertical flues being separated from eachotheryby spaces 40 which constitute waste heat flues. These three setsof helical flues extend around the central wall l5 of the centralpassage 14 in a uniformly rising helix and, as illustrated, these flues39 make threeturns around the central gas flue before discharging at 41into the combustion chamber 16 exteriorly of the tangential wa1l 18thereof These flues 39 are preferably formed of'tile which is dividedinto two chambers by the medial partition 32 previously referred toasbeing present in the tile forming the entrance fines or ducts 30. Thepurpose of forming the entrance flues 30 and the helical flues" 39 oftile divided by the medial partition 32 is to prevent any cold center inthe air' current, and further to secure stability in construction. VV'eare not limited to the detailed construction or form of the tiles fromwhich the fines 30 and the helical flues 39 are formed or to theparticular construction of the regenerator walls and like parts becausesuch details of construction may be varied in many ways. These series ofhelical ducts formed by tiles as described are supported upon a helicalwall 42 or in any other suitable manner.

As before remarked, the three series of helical ducts or dues are spacedfrom each other by vertical passages 40 "which extend;

from top to bottom of the regenerator,these passages 40 opening at theirupper ends through the bottom or floor ofthe waste-heat. chamber 23, asillustrated in Figures 2 and 3,these passages at their upper ends at apoint opposite the gas inlet to the combus tion chamber being blanked bythe blocks 43 or baffle walls. The heat, therefore, from the waste heatchamber 23 passes down the passages 40 on one-halfofa the regenerator,along the passages 31, beneath the floor of the gas passage 14, andlaterally between the tiles, as illustrated'by the arrows in Figure 3,Then 'the waste heat rises upward on thev opposite' side of the bafiiewalls'43 and through the two inner passages 40 to a pointimmediately'beneath the discharging ends of the helical fines andbeneath the-combustion chamber, and then passes downward, as.illustrated by the arrows in Figure 3, through. the two outermostpassages 40 and so to the passage 44 which leads to the; stack and whichextends tan gentially from the regenerator l0 and parallel to the gasinlet'jpassage 27. Preferably the tile or brick which constitutesthewall 15 is hollow and open on its outer face so as to constitute theinnerwaste heat passage 40, as illustrated in Figure 2, that is thepassage which immediately surrounds the gas passage14.

'. It will be seen that after burning, the products of combustion leavethe'pot or furnace through the passage or chamber (23,

discharge downward through the space be- 1 tween the helical tile to theinclined spaces betweeu'the fresh air entrance tile 30. pass under thegas flue or passage 27, and rise on the opposite 'sideofthe recuperatorand pass upward until'they str ke the bottom of the-combustion port orchamber where they act to heatfthe bottom of the chamber and thenpassdownward through the two outside spaces onxthis vside of the recuperatorto the bottom of 'therecuperator, where theylenter the stack flue. Theproducergas or any other, suitablegas enters the recuperator through thepassage 27 and rises through the circular gas flue 14 to the top of therecupei'ator and then passes into the combustion chamber where it mixeswith the heated air entering through the helical flues. This gastraveling upward through the.

circular, centrally disposed flue 14 is heated by the waste heat fromthe pot or furnace and this waste heat from the pot or furnace alsothoroughly heats the freshair passing through the helicalfiues. Thus nocheckers are requiredias is customary in regenerators vnow burningproducer gas; Furthermore,

no reversing'of the current of gas and air or of the current of productsofcombustion is necessary;

It is to be noted "that the mixture of heated gas and air acquires itsgreatest heat at the'pointof leaving the recu'perator and at the pointof combustion acquiring this extreme heat from the waste heat attheinstant the waste heat leaves the pot or furnace or other meltingdevice, and furthermore that the waste heat at its highest temperature,that is at the instant of leaving the pot or furnace, comes directly incontact with the air flue at the point of combustion. Thus the fresh airas it moves upward in the series of helical flues meets the current ofwaste heat and thus the'temperature of the fresh air is continuouslyincreased as it passes upward by flowing toward the point where thewaste heat is the hottest.

With this construction there is a constant current of fresh air and gasmoving in one direction toward the point of combustion and a constantcurrent of products of combustionmo-ving from the point of combustion ina direction reverse to that of the fresh air and gas andtoward thepointof final discharge so that the products of combustion are dischargedwith a minimum of retained heat and all the heat units, therefore, whichare present in the products of combustion or waste heat are utilized.Inasmuch as the air flues extend around the central gas chamber, itfollows that the air has a free and natural flow upward to the point ofdischarge into the combustion chamber and there are no abrupt turns orangles which would tend in any way to impede this natural draft or flowof air through these helical air flues.

, In Figures 18 to 14 we have illustrated the specific character of thetile usedto form the helical air flues. Figure 11 shows a top plan viewof three of these tiles and shows that the tiles forming the air fluesare gradually reduced in length toward the center of the furnace. Eachof these tiles has the longitudinally extending passage intersected bythe transverse partition 32 and one end face of each tile is formed withthe projecting tongues 44 and the other face with the recesses 45designed to receive these tongues. The ends of each tile are formed toprovide recesses 46 and when the tiles are brought together theserecesses 46 together constitute fines or channels 40 through which thewaste products of combustion pass. The walls on each side of each recess46 are formed with tongues 47 and on the opposite end with thecorresponding grooves 48 to receive these tongues and the end faces ofeach tile are formed on one face with vertical tongues 49 and on theother face with vertical grooves 50 to receive the tongues 49 ofadjacent tiles. The innermost tile 39 of the series of tiles forming thewall 15 of gas flue 14 is angular in form,

as illustrated in Figure 12, and is provided .on one face with thegroove 51 and on the other end face with the tongue 52 adapted to be.inserted in the groove '51 of an .adjacent tile. It will be seen thatthese helix tiles (Figure 11) have their ends convergent toward thecenter of the regenerator so that they conform to the radial lines ofthe regenerator or recuperator, and further it will be seen that theconstruction of the helix tile is such that double seal joints areprovided eliminating any possible leak from waste heat to the fresh'air,or vice versa.

It will be also understood that in Figures 1 to 9 we have illustratedthe construction of the recuperator diagrammatically and have notattempted to illustrate in these views the detailed arrangement of thetile from which the air flues are built.

We have illustrated in dotted lines in Figure 2 means whereby oilor gasmay be supplied to the port 19 in case producer gas is not used, thismeans including'the converging burner pipes 54.

lVe claim 1. A recuperator of the character described having helical airfines, and means for directing products of combustion around said airflues in a direction reverse to the direction of movement of the, air insaid flues.

2. A recuperator of the character described having a gas passage,helical air fiues spaced from each other, and means for directingproducts of combustion around said air flues and the gas passage in adirection reverse to the flow of gas and air.

3. A recuperator of the character described having a cumbustion chamberand a waste heat chamber disposed contiguous to the combustion chamber,a gas passage opening into the combustion chamber, a plurality ofhelical air flues extending around the bustion chamber, and means fordirecting the heated products'of combustion from the waste heat chamberaround the air fiues and the gas passage in a direction reverse to thedirection of flow of the air and gas.

4. A recuperator having a centrally disposed gas passage, a combustionchamber into which the gas passage opens, a plurality of helical airfiues arranged in radial series and extending around the gas passage andupward, the gas passage and air fiues discharging into the combustionchamber, the spaces between said series of air fines and the gas passageconstituting passages for the heated products of combustion.

5. A recuperator and a fire pot or furnace ooacting therewith, therecuperator having a combustion chamber at its upper end discharginginto the fire pot and having a chamber at its upper end for receivinghot products of combustion from the fire pot, a centrally disposed gaspassage extending upward through the recuperator and discharging intothe combustion chamber, and a plu rality of air flues arranged in radialseries as passage and opening into the comand extending helically aroundthe gas passage and discharging into the combustion chamber, and adischarge passage into which the spaces between the air hues and therecuperator wall discharge.

6. A recuperator and a fire pot or furnace coacting therewith, therecuperator having a combustion chamber at its upper end'discharginginto the fire pot and having a chamber at its upper end for receivinghotproducts of combustion from the fire pot, a centrally disposed gaspassage extending upward through the recuperator and discharging intothe combustion chamber, and a plurality of air flues arranged in" radialseries and extending helically around the gas passage and discharginginto the combustion chamber, the spaces between said radial series ofair flues and the central gas passage constituting lines for theproducts of combustion, said last named fiues extending verticallydownward through the recuperator and concentric to the central gaspassage and having baffle walls causing the products of combustion topass downward from said receiving chamber on one side of the.recuperator, then upward to a point beneath the floor of the combustionchamher, and then downward beside the outermost series of air fines, therecuperator having a discharge passage into which said fiues carryingproducts of combustion discharge.

7. A recuperator having an outer circular wall, a combustion chambercarried upon the upper end of the wall and having a Width equal toapproximately half of the recuperator, the combustion chamber beingadapted to open into a fire pot, a waste heat receiving chamber disposedparallel to the combustion chamber and contiguous theretoand having awidth approximately equal to half the diameter of the recuperator andadapted to receive products of com bustion and waste heat from a firepot, a central gas passage opening at its upper end into the combustionchamber and extending downward therefrom and then laterally to theexterior of the recuperator, a plurality of air flues arranged in aradial series and opening at their upper ends into the combustionchamber, said air flues extending helically downward and around thecentral gas passage to a point below the lower end of the gas passageand then opening to the exterior air, and being spaced from each otherand from the outer wall and the wall of said gas passage, said spaces"forming concentric fines for combustion products, said spaces beingdivided by vertical battle walls extending diametrically with respect tothe recuperator below the partition wall between the combustion chamherand the waste heat receiving chamber and across the rec-uperator to theopposite wall, said baffle walls extending downward to a point below thegas inlet whereby the products of combustion in the receivingchainbershall be directed downward and ast the series of air hues andthe adjacent walls of the gas passage and recuperator, thence upward onthe opposite sideot the recuperator to a pointvbelow the floor of thecombustion chamber, and thence downward between the outermost helicalfluesand the walls of the recuperator to a point of dis charge.

8. A recuperator of the character described having helical air hues anda com bustion chamber at the upper end into which said air fiuesdischarge, and means for di recting products of combustion from saidcombustion chamber downwardpast said air flues in a direction reverse tothe direction of movement of the air in said tlues and parallel to theaxial center around which the helix is described. i

9. A recuperator of the character de scribed having a combustion chamberand-,a waste heat chamber disposed contiguous to the combustion chamber,a central as passage opening into the combustion chamber, a pluralityof'helical air flues extending around the gas passage and opening attheir upper ends into the combustion chamber, and means for directingthe heated products of combustion from the waste heat chamber downwardpasta certain portion of the air fines in adirection reverse to thedirec tion of flow of the air and gas but parallel to the axis aroundwhich the helical hues are described, theni upward. past a certain otherportion of the air lines to a point beneath the bottom of the combustionchamber, and then downward and out 'of the recuperator. 1 f 10. A.recuperator of" the character de scribed having a combustion chamber anda central gas passage opening at its upper end into said combustionchamber, a waste heat chamber, a plurality of air flues communicating attheir lower ends withxfresh air' extending helically around the gas passage and opening at their upper ends" into the combustion chamber, saidair flues being divided into a plurality of vertically rangedseriesspaced from the contiguous vertically arranged series of air fluesto provide waste heat passages extending concentrically to the gaspassage, and' means for directing the heated products of combustion fromthe waste heat chamber downward through certain of sald spaces and pastthat portion of the air fiues disposed above the entrance portionsthereof, then upward to a point beneath the combustion chamber, and thendownward adjacent the exterior wall of the recuperator and outward.

11. In a recuperator, a combustion chamher, a plurality of helical airfines commnnicating with a source of fresh air at their lower ends andat their upper ends discharging into the combustion chamber, a fire potinto which the combustion chamber opens, and means for heating the airin said fines by the waste heat from said fire pot. V

'12. In a recuper ator, a plurality of air fines and means at theentrance of each air fine for controlling the amount of fresh airadmitted into said fine, each controlling means being independent of anyother controlling means.

18. In a recuperator, a combustion chamber, a series of air finesleading upward through said recuperator and discharging into thecombustion chamber, and means at the inlet end of each air flue forcontrolling the amount of air passing therethrough consisting of a doorframe, a door hinged thereto, the door frame having ratchet teeth andthe door being provided with a pawl adapted to engage the ratchet teeth.

14. In a recuperator, a plurality of transverse series of fresh airfines, each series consisting of a plurality of vertically superimposedfines, and means for controlling the admission of air to said finesconsisting of a plurality of frames each common to a vertical series offines, and a plurality of doors hingedly mounted on each frame and eachcontrolling the passage of air through one of said fines, each doorhaving means whereby it may be adjusted.

15. In a recnperator, a circular outer wall, a central gas passage, acombustion chamber, a waste heat chamber, a fire pot into which thecombustion chamber discharges and which in turn discharges into thewaste heat chamber, a radial series of air fines, each series consistingof a plnrality of vertically superimposed fines, said fines extendinghelically around the central gas passage and discharging into thecombustion chamber, and a series of inclined air inlet finescommunicating with the lower ends of the helical fines and extending tothe exterior of the recnperator wall, each air inlet flue having meansat its entrance end whereby the pass-age of air thereinto may becontrolled.- 16. In a recnperator having a circular outer wall and acentral gas inlet fine, a radial series of helical air fines,'eachseries consisting of a plurality of abutting tiles, the end faces ofeach tile being convergent inward, the end faces thereby conforming toradii drawn from the central axis of the recuperator. I

17. In a recnperator having a circular outer wall and a central fine, aradial series of helical air fines, each series consisting of aplurality of abutting tiles, the end faces of each tile being convergentinward and the tiles being progressively shorter in proportion to theirdistance from the central axis of the recnperator, the abuttingendvfaces of the tiles of one series having tongned and groovedsurfaces.

18. In a recnperator having a circular outer wall and a central fine, aradial series of helical air fines, each series consisting ofaplnrality'of abutting tiles, the end faces of each tile being convergentinward and the tiles being progressively shorter in proportion to theirdistance from the central axis of the recnperator, the abutting endfaces of the tiles of one series having tongned and grooved surfaces,the side faces of the tiles being recessed at the middle of the tileswhereby to form a series of vertically extending fines between theradial space of tiles.

19. In a recuperator having a circular outer wall and a central fine, aradial series of helical air fines, each series consisting of aplurality of abnttingtiles, the end faces of each tile being convergentinward and the tiles being progresively shorter in proportion to theirdistance from the central axis of the recnperator, the abutting endfaces of the tiles of one series having tongned and grooved surfaces,the side faces of the tiles being recessed at the middle of the tileswhereby to form a series of vertically extending fines between theradial space of tiles, the abutting surfaces of the side faces of thetiles having coacting tongues and grooves at the margins of the sidefaces of the tiles.

20. A tile for building helical fresh air fines, the tile havingconvergent end faces and a central passage divided by a partition, theend faces of the tile being formed with tongues and grooves extendingaround the margin of the end face between the central aperture and theside faces of the tile, the opposite side faces of the tile beingrecessed and the outer faces of the walls of said recesses being formedwith vertical grooves and vertical tongues.

In testimony whereof we hereunto afiix our signatures.

ADAM FELTON. EDWVARD H. KLEMROTH.

